CN109268055A - A kind of shield machine construction cooling system - Google Patents
A kind of shield machine construction cooling system Download PDFInfo
- Publication number
- CN109268055A CN109268055A CN201811256563.1A CN201811256563A CN109268055A CN 109268055 A CN109268055 A CN 109268055A CN 201811256563 A CN201811256563 A CN 201811256563A CN 109268055 A CN109268055 A CN 109268055A
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- China
- Prior art keywords
- water
- shield machine
- cooling system
- machine construction
- cooler
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
Abstract
The invention discloses a kind of shield machine construction cooling systems, including trolley vehicle frame, water cooler, surface air cooler and cooling tower；Water cooler is arranged on trolley vehicle frame, ventilating duct is provided on trolley vehicle frame, surface air cooler is set in ventilating duct；Water cooler has freezing water outlet, freezing water return outlet, circulating outlet and is recycled back to the mouth of a river；Surface air cooler is connected between freezing water outlet and freezing water return outlet, circulating outlet and is recycled back between the mouth of a river and is connected with cooling tower.Shield machine construction cooling system of the invention is chilled water to circulating water cooling processing using water cooler, chilled water introducing surface air cooler cools down the wind in ventilating duct, to cool down to shield machine construction environment, and recirculated water can carry out cooling down by the heat exchange with cooling tower, to which the heat of shield machine construction environment is transferred to outside, it can be relieved the damp and hot degree of construction environment, solve the problems, such as that the cooling system cooling effect of the shield machine of the prior art is poor.
Description
Technical field
The present invention relates to shield machine technical fields, more particularly to a kind of shield machine construction cooling system.
Background technique
With quickly propelling for China's urbanization, Urban Rail Transit Development is swift and violent, and subway construction is like a raging fire.Shield machine
It is the large-scale construction equipment in constructing metro tunnel, complete machine power is big, heat source is more, can generate a large amount of heat in the construction process
Amount, in addition the humidity of the underground space forms damp and hot severe construction environment, produces a series of adverse effect.
During shield method track construction, for shield machine total installed capacity power generally all in 1400KW or so, it will in a steady stream not
Disconnected real estate heat amount；The circulating chilled water of shield machine itself takes partial heat out of to tunnel outer, and considerable part heat still discharges
In the construction site of shield machine.When outdoor environment temperature reaches 35 DEG C or so, the environment temperature around shield machine be can achieve
40 DEG C even 45 DEG C, under such hot environment, staff will also be constructed by manual labor, not can guarantee safe life
It produces.
Currently, generalling use the method temporarily to cool down in the construction process:
1, individual protection cooling: construction personnel dresses cooling vest, cooling cap or uses common refrigerator-freezer, mineral water bottle, modeling
Material bag, which is poured water, makes ice cube, is used for individual protection.
2, ice block cooling: heat is transmitted using the heat of solution and mixture of ice and water and neighbouring Air Temperature Difference of ice.Due to melting
Speed of icing is slow, and heat exchange influence air range is small, and air parameter is uncontrollable, therefore can only be as interim cooling method.
3, spray sprinkler cools down: connecing high-pressure blast using sprayer and high pressure water carries out spray sprinkler operation, and then cool down.This
The problem of method can make the environment of script high humidity, and humidity is higher, not can effectively solve high temperature and humidity.
4, increase air quantity cooling: main to pass through the water system of shield machine itself, out slag system in shield method tunnel construction
System, ventilating system carry out most heat.Ventilation is to influence the final means of tunnel temperature, because ventilation being capable of direct shadow
The temperature of construction personnel's skin sensing is rung, but ventilation volume again cannot be infinitely great, is primarily due to:
(1) increasing air quantity just will increase wind speed, on the one hand increases the pressure loss and causes to waste, another aspect wind speed is more than
When 1.5-2m/s, the dust in tunnel can be blown afloat, influences the health of worker；
(2) power of blower and air quantity are three cubed relationships, and air quantity increases power of fan and becomes larger therewith；
(3) after air quantity reaches corresponding numerical value, it is further added by air quantity, the effect of cooling but gradually weakens, at this time can be significant
The factor of cooling is intake air temperature, rather than air inflow.
In conclusion the cooling effect of the cool-down method of existing shield machine construction process is all extremely limited, and pass through increasing
The method of Wind Volume can also significantly increase power and cause energy consumption, or even influence the health of construction personnel, therefore, more next
More need that a kind of structure is simple, low energy consumption, the shield machine construction cooling system of good cooling effect.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of structures simply, low energy consumption, the shield machine of good cooling effect is applied
Work cooling system.
A kind of shield machine construction cooling system, including trolley vehicle frame, water cooler, surface air cooler and cooling tower；
The water cooler is arranged on the trolley vehicle frame, ventilating duct is provided on the trolley vehicle frame, the table is cold
Device is set in the ventilating duct；
The water cooler has freezing water outlet, freezing water return outlet, circulating outlet and is recycled back to the mouth of a river；The freezing
It is connected with the surface air cooler between water outlet and the freezing water return outlet, the circulating outlet and being recycled back between the mouth of a river connects
There is the cooling tower.
Shield machine construction cooling system of the invention utilizes cooling-water machine by setting water cooler, surface air cooler and cooling tower
Group is chilled water to circulating water cooling processing, chilled water introducing surface air cooler is cooled down the wind in ventilating duct, thus to shield
Structure machine construction environment cools down, and recirculated water can carry out cooling down by the heat exchange with cooling tower, thus by shield
The heat of structure machine construction environment is transferred to outside, can be relieved the damp and hot degree of construction environment, solve the prior art
The problem of the cooling system cooling effect difference of shield machine.
It is further preferred that air supply tube and booster fan are additionally provided in the ventilating duct, the air supply tube and pressurization wind
Machine is located at the two sides of the surface air cooler.The air supply tube can drain into wind in ventilating duct；The booster fan can be with
For pressurizeing to the wind in ventilating duct, accelerates the circulation of wind, to improve the heat exchange of wind and surface air cooler, can obviously drop
The temperature of low wind.
It is further preferred that the air supply tube is canvas air supply tube.Canvas air supply tube has structure is simple, facilitates installation etc.
Feature.
It is further preferred that the water cooler and the surface air cooler are located at trolley vehicle frame tail portion；The trolley vehicle
Multiple wheels are provided on frame.The water cooler and the surface air cooler are set to trolley vehicle frame tail portion, facilitate installation
And it is not take up the construction space of shield machine front.
It is further preferred that the surface air cooler be it is multiple, multiple surface air coolers be connected in series and along the ventilating duct according to
Secondary setting.By the way that multiple surface air coolers are arranged, the heat transfer effect with wind in ventilating duct can be improved, reduce the temperature of wind.
It is further preferred that the water cooler includes evaporator, compressor and condenser interconnected, the evaporation
Device has the freezing water outlet and the freezing water return outlet, and the condenser is with the circulating outlet and described is recycled back to
The mouth of a river.By the evaporator, compressor and condenser, recirculated water is freezed at chilled water, to be transported to surface air cooler to wind
Cool down.
It is further preferred that the water cooler further includes filter and expansion valve, the condenser is successively through the mistake
Filter and the expansion valve are connect with the evaporator.The filter can be flowed into evaporator to from the condenser
Condensed water is filtered；The expansion valve makes the liquid refrigerant of medium temperature high pressure pass through its wet steaming of the throttling as low-temp low-pressure
Vapour, then refrigerant absorbs heat in the evaporator and reaches refrigeration effect.
It is further preferred that the shield machine construction cooling system further includes freezing back water pump, the freezing back water pump is solid
Due on the trolley vehicle frame, the surface air cooler is connect through the freezing back water pump with the freezing water return outlet of the evaporator.Institute
Stating freezing back water pump can be withdrawn into the chilled water after exchanging heat in surface air cooler in the evaporator of the water cooler.
It is further preferred that the shield machine construction cooling system further includes cooling force (forcing) pump, the cooling force (forcing) pump is solid
Due on the trolley vehicle frame, the circulating outlet of the condenser is connect through the cooling force (forcing) pump with the cooling tower.Institute
Stating cooling force (forcing) pump can will cool down in the suction of the recirculated water in the condenser cooling tower.
It is further preferred that the shield machine construction cooling system further includes distance host control cabinet, the distance host
Control cabinet is fixed on the trolley vehicle frame, and the distance host control cabinet connect described to control with the water cooler signal
Water cooler operation.The distance host control cabinet can carry out automatically controlling the operation of the water cooler.
Compared with the existing technology, shield machine construction cooling system of the invention passes through setting water cooler, surface air cooler and cold
But tower, using water cooler to circulating water cooling processing be chilled water, by chilled water introduce surface air cooler to the wind in ventilating duct into
Row cooling, thus cool down to shield machine construction environment, and recirculated water can be dropped by the heat exchange with cooling tower
Temperature is cooling, so that the heat of shield machine construction environment is transferred to outside, can be relieved the damp and hot degree of construction environment, solves
The problem of the cooling system cooling effect difference of the shield machine for the prior art of having determined.Shield machine construction cooling system of the invention has
The features such as structure is simple, low energy consumption, good cooling effect.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shield machine construction cooling system preferred structure of the invention.
Fig. 2 is the side view of shield machine construction cooling system preferred structure of the invention.
Fig. 3 is shield machine construction cooling system preferred structure connection schematic diagram of the invention.
Fig. 4 is the main view of water cooler.
Fig. 5 is the side view of water cooler.
Fig. 6 is the effect diagram of shield machine construction cooling system of the invention a certain embodiment cooling front and back.
Specific embodiment
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts.Therefore, it is possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
Please refer to Fig. 1-Fig. 3.Fig. 1 is the structural schematic diagram of shield machine construction cooling system preferred structure of the invention.Fig. 2
It is the side view of shield machine construction cooling system preferred structure of the invention.Fig. 3 is shield machine construction cooling system of the invention
Preferred structure connection schematic diagram.
Shield machine construction cooling system of the invention, including trolley vehicle frame 1, water cooler 2, surface air cooler 3 and cooling tower 4.
The water cooler 2 is arranged on the trolley vehicle frame 1, ventilating duct is provided on the trolley vehicle frame 1, the surface air cooler 3 is set
It is placed in the ventilating duct.
The water cooler 2 has freezing water outlet, freezing water return outlet, circulating outlet and is recycled back to the mouth of a river；It is described cold
Freeze between water outlet and the freezing water return outlet and be connected with the surface air cooler 3, the circulating outlet and is recycled back between the mouth of a river
It is connected with the cooling tower 4.
Specifically, the water cooler 2 and the surface air cooler 3 are located at 1 tail portion of trolley vehicle frame.By the water cooler
2 and the surface air cooler 3 be set to 1 tail portion of trolley vehicle frame, facilitate installation and be not take up the construction space of shield machine front.Institute
It states and is provided with multiple wheels on trolley vehicle frame 1.
Further referring to Fig. 4 and Fig. 5.Fig. 4 is the main view of water cooler.Fig. 5 is the side view of water cooler.
The embodiment of the present invention water cooler 2 includes evaporator 21 interconnected, compressor 22 and condenser 23, described
Evaporator 21 has the freezing water outlet and the freezing water return outlet, and the condenser 23 has the circulating outlet and institute
It states and is recycled back to the mouth of a river.By the evaporator 21, compressor 22 and condenser 23, recirculated water is freezed at chilled water, thus defeated
Surface air cooler 3 is sent to cool down to wind.
Preferably, the water cooler 2 further includes filter 24 and expansion valve 25, and the condenser 23 is successively through the mistake
Filter 24 and the expansion valve 25 are connect with the evaporator 21.The filter 24 can be flowed into from the condenser 23
Condensed water in evaporator 21 is filtered；The expansion valve 25 makes the liquid refrigerant of medium temperature high pressure become low by its throttling
The moist steam of warm low pressure, then refrigerant absorbs heat in the evaporator 21 and reaches refrigeration effect.
The shield machine construction cooling system further includes freezing back water pump 9, and the freezing back water pump 9 is fixed on the trolley
On vehicle frame 1, the surface air cooler 3 is connect through the freezing back water pump 9 with the freezing water return outlet of the evaporator 21.It is described to freeze back
Chilled water after exchanging heat in surface air cooler 3 can be withdrawn into the evaporator 21 of the water cooler 2 by water pump 9.
The shield machine construction cooling system further includes cooling force (forcing) pump 5, and the cooling force (forcing) pump 5 is fixed on the trolley
On vehicle frame 1, the circulating outlet of the condenser 23 is connect through the cooling force (forcing) pump 5 with the cooling tower 4.The cooling adds
Recirculated water in condenser 23 can be pumped into the cooling tower 4 and cool down by press pump 5.
Preferably, air supply tube 6 and booster fan 7, the air supply tube 6 and booster fan 7 are additionally provided in the ventilating duct
It is located at the two sides of the surface air cooler 3.The air supply tube 6 can drain into wind in ventilating duct；The booster fan 7 can be with
For pressurizeing to the wind in ventilating duct, accelerate the circulation of wind, so that the heat exchange of wind Yu surface air cooler 3 is improved, it can be obvious
Reduce the temperature of wind.
The ventilating duct can make full use of the original supply air system of shield machine to be configured.The embodiment of the present invention air-supply
Pipe 6 is preferably set to canvas air supply tube.Canvas air supply tube has the characteristics that structure is simple, facilitates installation.
It is further preferred that the surface air cooler 3 be it is multiple, multiple surface air coolers 3 are connected in series and along the ventilating ducts
It sets gradually.By the way that multiple surface air coolers 3 are arranged, the heat transfer effect with wind in ventilating duct can be improved, reduce the temperature of wind.
The embodiment of the present invention shield machine construction cooling system is preferably provided with distance host control cabinet 8, described remote
Journey host control cabinet 8 is fixed on the trolley vehicle frame 1, and the distance host control cabinet 8 is connect with 2 signal of water cooler
It is run with controlling the water cooler 2.The distance host control cabinet 8 can carry out the operation of the water cooler 2 automatic
Control.
Since the model of shield machine, service life, soil layer construction are different, the environment temperature of different regions also has difference
Different, therefore, shield machine construction cooling system of the invention should follow design principle below:
Ventilation volume can be calculated according to personnel, electric welding, gas dilution, exhaust gas dilution, minimum air quantity etc..Ventilation system
Cooling capacity=thermal power heat production+dregs agitation friction heat production-outer loop water-cooled-is slagged tap heat dissipation.It can be according to refrigerating capacity and peace
Holding position makes nonstandardization design to the water cooler.Surface air cooler is designed according to air quantity, wind pressure and refrigeration cooling capacity.
It should be pointed out that the cooling tower 4 of shield machine construction cooling system of the invention can be existing cold with shield machine
But circulation shares, in this way, enforcement difficulty can be substantially reduced, reduces the cost of implementation.
The thermodynamical equilibrium principle that shield machine construction cooling system of the invention can balance each other according to heat production and heat dissipation is right
Each portion carries out nonstandardized technique design, and the final goal of design can make the workspace sendible temperature of shield machine reach 28 DEG C of left sides
It is right.
Referring to Fig. 6, Fig. 6 is the effect signal of shield machine construction cooling system of the invention a certain embodiment cooling front and back
Figure.
It will be appreciated from fig. 6 that the mean temperature before pipe sheet assembling platform and connecting bridge cooling is 35 DEG C；Pipe sheet assembling platform and company
Mean temperature after connecing bridge cooling is 28 DEG C；Minimum temperature after the cooling of pipe sheet assembling platform is up to 25.5 DEG C.
The requirement for being 28 DEG C according to constructing tunnel temperature as defined in middle iron " railway tunnel construction specification ", this embodiment result
Fully meet design requirement and construction requirement.
Therefore, shield machine construction cooling system of the invention solves the high temperature problem in tunneling shield work progress, is
Construction personnel provides a pleasant working environment, provides guarantee for safety in production.
Compared with the existing technology, shield machine construction cooling system of the invention passes through setting water cooler, surface air cooler and cold
But tower, using water cooler to circulating water cooling processing be chilled water, by chilled water introduce surface air cooler to the wind in ventilating duct into
Row cooling, thus cool down to shield machine construction environment, and recirculated water can be dropped by the heat exchange with cooling tower
Temperature is cooling, so that the heat of shield machine construction environment is transferred to outside, can be relieved the damp and hot degree of construction environment, solves
The problem of the cooling system cooling effect difference of the shield machine for the prior art of having determined.Shield machine construction cooling system of the invention has
The features such as structure is simple, low energy consumption, good cooling effect.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.
Claims (10)
1. a kind of shield machine construction cooling system, it is characterised in that: including trolley vehicle frame, water cooler, surface air cooler and cooling tower；
The water cooler is arranged on the trolley vehicle frame, ventilating duct is provided on the trolley vehicle frame, the surface air cooler is set
It is placed in the ventilating duct；
The water cooler has freezing water outlet, freezing water return outlet, circulating outlet and is recycled back to the mouth of a river；The freezing water outlet
Mouthful the surface air cooler is connected between the freezing water return outlet, the circulating outlet and being recycled back between the mouth of a river connects
State cooling tower.
2. shield machine construction cooling system according to claim 1, it is characterised in that: be additionally provided with and send in the ventilating duct
Air hose and booster fan, the air supply tube and booster fan are located at the two sides of the surface air cooler.
3. shield machine construction cooling system according to claim 2, it is characterised in that: the air supply tube is canvas air-supply
Pipe.
4. shield machine construction cooling system according to claim 2, it is characterised in that: the water cooler and the table are cold
Device is located at trolley vehicle frame tail portion；Multiple wheels are provided on the trolley vehicle frame.
5. shield machine construction cooling system according to claim 2, it is characterised in that: the surface air cooler be it is multiple, it is multiple
The surface air cooler is connected in series and sets gradually along the ventilating duct.
6. shield machine construction cooling system according to claim 1-5, it is characterised in that: the water cooler packet
Evaporator, compressor and condenser interconnected are included, the evaporator has the freezing water outlet and the freezing return water
Mouthful, the condenser has the circulating outlet and described is recycled back to the mouth of a river.
7. shield machine construction cooling system according to claim 6, it is characterised in that: the water cooler further includes filtering
Device and expansion valve, the condenser are successively connect through the filter and the expansion valve with the evaporator.
8. shield machine construction cooling system according to claim 6, it is characterised in that: the shield machine construction cooling system
It further include freezing back water pump, the freezing back water pump is fixed on the trolley vehicle frame, and the surface air cooler is through the freezing return water
Pump is connect with the freezing water return outlet of the evaporator.
9. shield machine construction cooling system according to claim 6, it is characterised in that: the shield machine construction cooling system
It further include cooling force (forcing) pump, the cooling force (forcing) pump is fixed on the trolley vehicle frame, the circulating outlet warp of the condenser
The cooling force (forcing) pump is connect with the cooling tower.
10. shield machine construction cooling system according to claim 6, it is characterised in that: shield machine construction cooling system
System further includes distance host control cabinet, and the distance host control cabinet is fixed on the trolley vehicle frame, the distance host control
Case processed is connect to control the water cooler operation with the water cooler signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256563.1A CN109268055A (en) | 2018-10-26 | 2018-10-26 | A kind of shield machine construction cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256563.1A CN109268055A (en) | 2018-10-26 | 2018-10-26 | A kind of shield machine construction cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268055A true CN109268055A (en) | 2019-01-25 |
Family
ID=65194572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811256563.1A Pending CN109268055A (en) | 2018-10-26 | 2018-10-26 | A kind of shield machine construction cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109268055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944598A (en) * | 2019-04-19 | 2019-06-28 | 中铁工程装备集团有限公司 | A kind of development machine circulation water cooling device |
| CN113432371A (en) * | 2021-07-08 | 2021-09-24 | 中亘节能科技有限公司 | Whole vehicle thermal management system and method for shield machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566724A (en) * | 2015-01-05 | 2015-04-29 | 西安工程大学 | Ventilation air-conditioning system for subway environmental control system |
| CN105276735A (en) * | 2015-11-20 | 2016-01-27 | 西安工程大学 | Evaporative cooling-mechanical refrigerating combined air conditioning system utilizing subway tunnel to radiate |
| CN207538850U (en) * | 2017-12-01 | 2018-06-26 | 中交二公局第三工程有限公司 | Air-cooled circulating water cooling system in a kind of tunnel |
| CN208763685U (en) * | 2018-10-26 | 2019-04-19 | 中铁广州建设有限公司 | A kind of shield machine construction cooling system |
-
2018
- 2018-10-26 CN CN201811256563.1A patent/CN109268055A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566724A (en) * | 2015-01-05 | 2015-04-29 | 西安工程大学 | Ventilation air-conditioning system for subway environmental control system |
| CN105276735A (en) * | 2015-11-20 | 2016-01-27 | 西安工程大学 | Evaporative cooling-mechanical refrigerating combined air conditioning system utilizing subway tunnel to radiate |
| CN207538850U (en) * | 2017-12-01 | 2018-06-26 | 中交二公局第三工程有限公司 | Air-cooled circulating water cooling system in a kind of tunnel |
| CN208763685U (en) * | 2018-10-26 | 2019-04-19 | 中铁广州建设有限公司 | A kind of shield machine construction cooling system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944598A (en) * | 2019-04-19 | 2019-06-28 | 中铁工程装备集团有限公司 | A kind of development machine circulation water cooling device |
| CN113432371A (en) * | 2021-07-08 | 2021-09-24 | 中亘节能科技有限公司 | Whole vehicle thermal management system and method for shield machine |
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